A bottle of BubbleLick is filled with 25 ml of the basic edible bubble mixture when it is packaged. When you are ready, you can add 25ml more of any drink that you like to add flavour to it as there is extra room provided to accommodate it. While the bubble mixture allows you to add any edible liquid to the mixture, the thickness of the liquid drink you are adding may affect the ability of the mixture to produce bubbles easily. Therefore, it might be best to stay clear of adding liquids such as milk and soup.